Harrow attachment for plows.



No. 837,986. PATENTED DEG. ll, 1906. W. WALKER. HARROW ATTACHMENT FORPLOWS.

APPLICATION FILED JULYS, 1908.

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- WILLIS WALKER, -OF SEDALIA, COLORADO.

HARROW ATTACHNl-ENT FOR FLOWS.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application iiled July 3, 1906. Serial No. 324.641.

To all whom t may concern: @Be it known that I,WILL1s WALKER, a citizenof the United States, residing at Sedalia, in the county of Douglas andState of Oolorado, have invented a new and useful Harrow Attachment forPlows, of which the following is a specification.

This invention has relation to harrow attachments especially adapted tobe applied to the disk-plow type of such implements, but it may be alsoused to advantage upon moldboard or other patterns of earth-openers.

The invention consists rimarily of a tubular shaft having attached) atone end a suitable braced angle-iron, by means of which the said shaftis attached to the frame of the implement. A gear-segment is locatedupon the said shaft at or near the point Where the same connects withthe said angle-iron. A sleeve is slipped upon said shaft and is mountedfor rotation thereon. A series of spring harrow-teeth are secured byclips tosaid sleeve, the said teeth being out of aline-l ment with eachother in a transverse direction. A ratchet-lever is attached to the endof said sleeve, and the ratchet thereof is adapted to engage thegear-segment located upon the shaft. Thus the sleeve and the shaft aresecured in fixed relation to each other. A Cotter-pin passes through theend of the shaft and is adapted to hold the sleeve in position thereonin a longitudinal direction of the same.

In the accompanying drawings, Figure l' is a perspective view of theharrow attachment applied to a plow. Fig. 2 is a side elevation of theinner portion of the attachment with parts in section.

The hollow shaft l may, if desired, be made of pi e, and at or near oneend thereof is locate the gear-segment 2. The angle-iron 3 is fixed toone end of the said shaft 2 and is provided at the point 4L with a twistfor the urpose of adding rigidity to the same. The bolts 5 secure thesaid iron 3 to the framework of the implement at any desired point. Thebrace 6 is connected at its ends to the said iron 3 at or near the endsthereof and is adapted to brace the same against lateral strain.

The sleeve 7 is slid into position over the shaft l. The said sleeve ismounted for rotation upon the shaft and is retained thereon by means ofthe cotter-pin 8, which passes through suitable perforations in the endof the shaft l. the inner end of the sleeve 7 and is provided with thepawl 10, which is adapted to engage and disengage the gear-teeth of thesegment 2. The spring harrow-teeth 11 are secured to the sleeve 7 bymeans of the clips 12, the ends of which pass through suitableperforations at the upper ends of the spring-teeth 7 and are securedtherein by the usual taps screw-threaded upon the ends of the saidclips. The upper ends of the spring-teeth 11 are provided with a numberof perforations, whereby the position of the teeth 1l may be adjustedupon the sleeve 7 to meet conditions or requirements. The working endsof the teeth 11 are preferably located out of alinement with each other,so that the said teeth will not accumulate or collect trash, &c., asthey are drawn over the ground.

The upper end of the lever 9 is within convenient operating distancefrom the plowmans seat, and by swinging the end of said lever it isobvious that the working ends of the harrow-teeth l1 may be caused towork at different degrees of depth within the soil in breaking the clodsand pulverizing the same. Also the said lever may be manipulated inorder to bring the working ends of the harrow-teeth 1l out of contactwith the soil altogether.

The advantage of this invention resides in the fact that it is a plowattachment and being attached to the plow the ground is harrowed as soonas it is broken. Consequently no time elapses in which the soil mightdry out and the clods harden. It is also of convenient form. The shaftbeing tubular is light and possesses maximum strength. The tubularsleeve extending over the shaft possesses the same and reduces the wearincident to friction between the two said members to a minimum.

The attachment may be easily and readily applied to a plow or detachedfrom the same without changing the construction of the implement in anyrespect.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

A harrow attachment for plows consisting of a shaft, means for attachingsaid shaft tol The ratchet-lever 9 is fixed to TOO the frame of theplow, a sleeve rotatably lo- In testimony that I claim the foregoing ascated upon said shaft, a gear-segment xed my own I have hereto aHXed mysignature in to the shaft and adapted to retain said sleeve the presenceof two Witnesses.

against rotary movement, a ratchet-lever at- WILLIS WALKER. taehed tothe sleeve and having a dog which Witnesses:

engages said segment, and barrow-teeth ear- TH. CHRISTENSEN,

fied by the sleeve. CHAS. HY. ELLIS,

